Complete absence of test suite - No unit, integration, or UI tests exist. Business logic and UI components are untested, creating high risk of regressions.

Implement comprehensive test suite: 1) Golden tests for UI consistency, 2) Unit tests for business logic, 3) Integration tests with mock data and staging environment. Add test execution to CI/CD pipeline.

Suboptimal Git workflow and deployment strategy - GitFlow makes tracking changes difficult. Separate tags for staging/production prevent artifact promotion. No clear path from staging to production.

Migrate to trunk-based development. Implement single tag approach: tag once, deploy to staging, promote same tag to production after approval. Finish all hanging changes. Use feature flags instead of separate entry points.

Unencrypted sensitive data storage - Access tokens, refresh tokens, usernames, UIDs, and email addresses stored in plain text in SQLite database. No encryption at rest for sensitive user data.

Migrate sensitive data to flutter_secure_storage. Use Android Keystore/iOS Keychain for credentials. Encrypt database file or sensitive columns using SQLCipher. Remove plain text storage of tokens and credentials.

Refactoring strategy alignment - No clear strategy for refactoring. Should align refactoring efforts with redesign to maximize value and avoid duplicate work.

Focus on redesign when starting code refactoring. Align refactoring sprints with redesign milestones. Use redesign as opportunity to implement modern architecture patterns. Combine technical debt resolution with user experience improvements.

Inconsistent error handling - Centralized error handling helper exists but usage is inconsistent. Some routes duplicate error handling logic. Error messages hardcoded in Dutch.

Standardize error handling across all routes. Remove duplicate inline error handling. Internationalize all error messages. Ensure all async operations have proper error handling.

Missing documentation - Sparse code documentation, minimal README, no API documentation. No architecture documentation or setup instructions.

Expand README with comprehensive setup instructions. Add code documentation to public APIs. Create API documentation file. Document architecture and design patterns.

Memory leak potential - Connectivity subscription not cancelled, image memory usage without limits, state persistence on every change.

Cancel all StreamSubscriptions in dispose methods. Add memory limits for image loading. Optimize state persistence (batch updates). Add memory profiling.

Network performance improvements - No request caching, no request batching, no retry logic. Token refresh creates new Dio instance.

Implement HTTP response caching. Add request deduplication. Implement retry logic for transient failures. Optimize token refresh flow.